Dumping apparatus



v G. W. McGLAUFLlN.

DUMPING APPARATUS.

APPLICATION FILED MAR. 18, 1921.

Patented June 27, 1922.

, George WM? Ghana/117' INVENTOR.

' ATTORNEY.

airs

GEORGE W. MOGLAUFLIN, OF SIOUX CITY,1OW'A.

DUMPING APPARATUS.

Specification of Letters Patent. 7 Patented June 27, 1922,

Application filed March 18, 1921. Serial No. 453,317.

T 0 all whom itmay concern:

Be it known that I, GEORGE W. MoGLAUr- LIN, a citizen of the United States, residing in the city of Sioux City,-in the county of trated by the accompanying drawings.

My invention relates to that class of dumping apparatus which is commonly used in the operation of discharging into elevator pits or elsewhere small gram and other loads from trucks and wagons of common construction by tilting the body of the vehicle, and which individually comprises means for hoisting the forward end of the vehicle. It is the main object of my improvements to reduce the cost of makingand installing apparatus of this class; to simplify its construction; to adapt the same to be set up by unskilled labor; to adapt the same to be used with equal convenience in connection either with a wooden floor or with a concrete pavement forming part of the driveway on which the vehicle moves to the place of dumping; and to obviate all need of blocking, braking or chaining the vehicle wheels when the dumping occurs. .To accomplish these objects, I incorporate in my improved dumping apparatus, as parts thereof, a pair of duplicate and parallel frames which are erected at opposite sides of the driveway, a pair of idle pulleys which are carried by hangers mounted on wheels at the top of the frames respectively, other idle pulleys which are anchored below the level of the driveway, and a pneumatic jack which is located at one side of the driveway and is adapted to raise and lower the front axle of the vehicle by means of ropes running on said pulleys.

In said drawings, illustrating the best manner in which I have contemplated applying the principles of the invention, Fig. 1 is a perspective view ,of a dumping apparatus which is constructed in accordance with these principles, and a wagon to which the same is applied. Fig. 2 is a perspective detail of an overhead portion of Fig. 1.

In these views the numerals 3 and 4: denote duplicate and parallel upright wooden frames, which are of quadrangular form and are erected at opposite sides of the driveway 5 at a convenient distance apart to accommodate between them the wagon 6.

Each of these frames comprises the sill 7, which is adapted to rest upon the ground, the upwardly converging end posts 8, which are fastened to the sill, and the horizontal top beams 9, Which span the posts and are provided each with a longitudinal track or railway 10. These frames are secured in :the described position at opposite sides of the dr veway by any suitable attachment to adyacent grain elevators or other buildings which are not shown in the drawings, and in suitable relation to the pit 30, having a cover 31 forming part of this driveway.

The pneumatic ack 11, which stands upright at oneside of the driveway 5 and in or near the upright frame 3, comprises the hollow air cylinder 12, the plunger 13 thereon, the cross-head 14 carried by the plunger stem, and the supply inlet 15 at the bot tom of the cylinder. To the crosshead 14: is attached the rope 16, which runs on the grooved dead pulleys 17 and 18 to one end of the front axle 19, and is attached thereto as occasion may require; while to the same crosshead is attached the rope 20, which runs on the similar pulleys 21, 22 and 23 to the opposite end of the same axle. The pulleys 21 and 18 are securely anchored by the weight 24, and the pulley 22 by the weight 25, in a hole 26 which crosses the driveway 5 from side to side under its pavement or flooring. Each of the overhead pulleys 17 and 23 is suspended, by means of a flexible connection 27, from a hanger 28, which has two grooved wheels 29, spaced apart and running on the rail track 10, and constitutes a carrier for the pulley.

To make use of this apparatus, the loaded wagon 6, which may be of any ordinary length, or wheel base, is moved on the drive way5 to a suitable position, as indicated, for dumping its contents into the pit 30 behind; and the pit is then opened by tilting or removing its cover 31. The ropes 16 and 20, arranged as described and shown, are then drawn taut in the idle pulleys and tied or otherwise secured to the opposite end portions respectively of the front axle 19. Compressed air from any convenient supply is then admitted to the pneumatic jack by the way of the inlet 15, with the result that the plunger 13 is gradually lifted. This movement of the plunger continues until the wagon is elevated at its forward end, by the connected ropes, and tilted to a suitable inclination for dumping its load into the pit in the usual manner. The air supply through the inlet 15 may then be shut off, and afterward the empty Wagon may be permitted automatically and gradually to return to its untilted position, as the pressure in the air cylinder leaks away. As the tilting of the Wagon begins, the pulleysupporting Wheels 29 move automatically on the level tracks 10 to such positions that the wagon is not drawn eit er baclm'ard or forward on the driveway by the pull of the ropes the tilting proceeds.

I clai ii as my invention 1. Dumping apparatus of the specified class, comprising a pair of overhead tracks at opposite sides of the vehicle; carriers adapted to travel on the tracks respectively; pulleys suspended from the carriers respectively; ropes running over the pulleys respectively to one end of the vehicle; and a jack adapted to exert tension on the ropes.

2. Dumping apparatus of the specified class, comprising a pair of supporting frames erected at opposite sides of the driveway of the vehicle; a pairof horizontal overheat tracks secured to the frames respectively; a pair of carriers adapted to move on the tracks respectively; a pair of grooved pulleys suspended from the carriers respectively; a pair of ropes attachable to one end or the vehicle, and running over the grooved pulleys; and a jack located at one side of the driveway and connected with the ropes.

3. Dumping apparatus of the specified class, comprising a pair of horizontal overhead tracks supported at opposite sides of the vehicle; a pair of Wheeled carriers movable on the tracks respectively; a pair of grooved pulleys dependent from the carriers respectively; like pulleys anchored in the ground at opposite sides of the vehicle; a pair of ropes adapted to run on the grooved pulleys to an end portion of the vehicle; and a pneumatic jack adapted to pull and relax the ropes for the purpose of tilting the vehicle and untilting the same.

il itness my signature at Sioux City, Iowa, lkz'larch 10th 1921.

GEORGE TV. hl o'GLl-LUFLIN 

